1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2016-2018 Microsoft Corporation 3 * Copyright(c) 2013-2016 Brocade Communications Systems, Inc. 4 * All rights reserved. 5 */ 6 7 #include <stdint.h> 8 #include <string.h> 9 #include <stdio.h> 10 #include <errno.h> 11 #include <unistd.h> 12 13 #include <rte_ethdev.h> 14 #include <rte_memcpy.h> 15 #include <rte_string_fns.h> 16 #include <rte_memzone.h> 17 #include <rte_devargs.h> 18 #include <rte_malloc.h> 19 #include <rte_kvargs.h> 20 #include <rte_atomic.h> 21 #include <rte_branch_prediction.h> 22 #include <rte_ether.h> 23 #include <rte_ethdev_driver.h> 24 #include <rte_cycles.h> 25 #include <rte_errno.h> 26 #include <rte_memory.h> 27 #include <rte_eal.h> 28 #include <rte_dev.h> 29 #include <rte_bus_vmbus.h> 30 31 #include "hn_logs.h" 32 #include "hn_var.h" 33 #include "hn_rndis.h" 34 #include "hn_nvs.h" 35 #include "ndis.h" 36 37 #define HN_TX_OFFLOAD_CAPS (DEV_TX_OFFLOAD_IPV4_CKSUM | \ 38 DEV_TX_OFFLOAD_TCP_CKSUM | \ 39 DEV_TX_OFFLOAD_UDP_CKSUM | \ 40 DEV_TX_OFFLOAD_TCP_TSO | \ 41 DEV_TX_OFFLOAD_MULTI_SEGS | \ 42 DEV_TX_OFFLOAD_VLAN_INSERT) 43 44 #define HN_RX_OFFLOAD_CAPS (DEV_RX_OFFLOAD_CHECKSUM | \ 45 DEV_RX_OFFLOAD_VLAN_STRIP) 46 47 int hn_logtype_init; 48 int hn_logtype_driver; 49 50 struct hn_xstats_name_off { 51 char name[RTE_ETH_XSTATS_NAME_SIZE]; 52 unsigned int offset; 53 }; 54 55 static const struct hn_xstats_name_off hn_stat_strings[] = { 56 { "good_packets", offsetof(struct hn_stats, packets) }, 57 { "good_bytes", offsetof(struct hn_stats, bytes) }, 58 { "errors", offsetof(struct hn_stats, errors) }, 59 { "ring full", offsetof(struct hn_stats, ring_full) }, 60 { "multicast_packets", offsetof(struct hn_stats, multicast) }, 61 { "broadcast_packets", offsetof(struct hn_stats, broadcast) }, 62 { "undersize_packets", offsetof(struct hn_stats, size_bins[0]) }, 63 { "size_64_packets", offsetof(struct hn_stats, size_bins[1]) }, 64 { "size_65_127_packets", offsetof(struct hn_stats, size_bins[2]) }, 65 { "size_128_255_packets", offsetof(struct hn_stats, size_bins[3]) }, 66 { "size_256_511_packets", offsetof(struct hn_stats, size_bins[4]) }, 67 { "size_512_1023_packets", offsetof(struct hn_stats, size_bins[5]) }, 68 { "size_1024_1518_packets", offsetof(struct hn_stats, size_bins[6]) }, 69 { "size_1519_max_packets", offsetof(struct hn_stats, size_bins[7]) }, 70 }; 71 72 static struct rte_eth_dev * 73 eth_dev_vmbus_allocate(struct rte_vmbus_device *dev, size_t private_data_size) 74 { 75 struct rte_eth_dev *eth_dev; 76 const char *name; 77 78 if (!dev) 79 return NULL; 80 81 name = dev->device.name; 82 83 if (rte_eal_process_type() == RTE_PROC_PRIMARY) { 84 eth_dev = rte_eth_dev_allocate(name); 85 if (!eth_dev) { 86 PMD_DRV_LOG(NOTICE, "can not allocate rte ethdev"); 87 return NULL; 88 } 89 90 if (private_data_size) { 91 eth_dev->data->dev_private = 92 rte_zmalloc_socket(name, private_data_size, 93 RTE_CACHE_LINE_SIZE, dev->device.numa_node); 94 if (!eth_dev->data->dev_private) { 95 PMD_DRV_LOG(NOTICE, "can not allocate driver data"); 96 rte_eth_dev_release_port(eth_dev); 97 return NULL; 98 } 99 } 100 } else { 101 eth_dev = rte_eth_dev_attach_secondary(name); 102 if (!eth_dev) { 103 PMD_DRV_LOG(NOTICE, "can not attach secondary"); 104 return NULL; 105 } 106 } 107 108 eth_dev->device = &dev->device; 109 110 /* interrupt is simulated */ 111 dev->intr_handle.type = RTE_INTR_HANDLE_EXT; 112 eth_dev->data->dev_flags |= RTE_ETH_DEV_INTR_LSC; 113 eth_dev->intr_handle = &dev->intr_handle; 114 115 return eth_dev; 116 } 117 118 static void 119 eth_dev_vmbus_release(struct rte_eth_dev *eth_dev) 120 { 121 /* mac_addrs must not be freed alone because part of dev_private */ 122 eth_dev->data->mac_addrs = NULL; 123 /* free ether device */ 124 rte_eth_dev_release_port(eth_dev); 125 126 eth_dev->device = NULL; 127 eth_dev->intr_handle = NULL; 128 } 129 130 /* handle "latency=X" from devargs */ 131 static int hn_set_latency(const char *key, const char *value, void *opaque) 132 { 133 struct hn_data *hv = opaque; 134 char *endp = NULL; 135 unsigned long lat; 136 137 errno = 0; 138 lat = strtoul(value, &endp, 0); 139 140 if (*value == '\0' || *endp != '\0') { 141 PMD_DRV_LOG(ERR, "invalid parameter %s=%s", key, value); 142 return -EINVAL; 143 } 144 145 PMD_DRV_LOG(DEBUG, "set latency %lu usec", lat); 146 147 hv->latency = lat * 1000; /* usec to nsec */ 148 return 0; 149 } 150 151 /* Parse device arguments */ 152 static int hn_parse_args(const struct rte_eth_dev *dev) 153 { 154 struct hn_data *hv = dev->data->dev_private; 155 struct rte_devargs *devargs = dev->device->devargs; 156 static const char * const valid_keys[] = { 157 "latency", 158 NULL 159 }; 160 struct rte_kvargs *kvlist; 161 int ret; 162 163 if (!devargs) 164 return 0; 165 166 PMD_INIT_LOG(DEBUG, "device args %s %s", 167 devargs->name, devargs->args); 168 169 kvlist = rte_kvargs_parse(devargs->args, valid_keys); 170 if (!kvlist) { 171 PMD_DRV_LOG(NOTICE, "invalid parameters"); 172 return -EINVAL; 173 } 174 175 ret = rte_kvargs_process(kvlist, "latency", hn_set_latency, hv); 176 if (ret) 177 PMD_DRV_LOG(ERR, "Unable to process latency arg\n"); 178 179 rte_kvargs_free(kvlist); 180 return ret; 181 } 182 183 /* Update link status. 184 * Note: the DPDK definition of "wait_to_complete" 185 * means block this call until link is up. 186 * which is not worth supporting. 187 */ 188 int 189 hn_dev_link_update(struct rte_eth_dev *dev, 190 int wait_to_complete) 191 { 192 struct hn_data *hv = dev->data->dev_private; 193 struct rte_eth_link link, old; 194 int error; 195 196 old = dev->data->dev_link; 197 198 error = hn_rndis_get_linkstatus(hv); 199 if (error) 200 return error; 201 202 hn_rndis_get_linkspeed(hv); 203 204 hn_vf_link_update(dev, wait_to_complete); 205 206 link = (struct rte_eth_link) { 207 .link_duplex = ETH_LINK_FULL_DUPLEX, 208 .link_autoneg = ETH_LINK_SPEED_FIXED, 209 .link_speed = hv->link_speed / 10000, 210 }; 211 212 if (hv->link_status == NDIS_MEDIA_STATE_CONNECTED) 213 link.link_status = ETH_LINK_UP; 214 else 215 link.link_status = ETH_LINK_DOWN; 216 217 if (old.link_status == link.link_status) 218 return 0; 219 220 PMD_INIT_LOG(DEBUG, "Port %d is %s", dev->data->port_id, 221 (link.link_status == ETH_LINK_UP) ? "up" : "down"); 222 223 return rte_eth_linkstatus_set(dev, &link); 224 } 225 226 static void hn_dev_info_get(struct rte_eth_dev *dev, 227 struct rte_eth_dev_info *dev_info) 228 { 229 struct hn_data *hv = dev->data->dev_private; 230 231 dev_info->speed_capa = ETH_LINK_SPEED_10G; 232 dev_info->min_rx_bufsize = HN_MIN_RX_BUF_SIZE; 233 dev_info->max_rx_pktlen = HN_MAX_XFER_LEN; 234 dev_info->max_mac_addrs = 1; 235 236 dev_info->hash_key_size = NDIS_HASH_KEYSIZE_TOEPLITZ; 237 dev_info->flow_type_rss_offloads = hv->rss_offloads; 238 dev_info->reta_size = ETH_RSS_RETA_SIZE_128; 239 240 dev_info->max_rx_queues = hv->max_queues; 241 dev_info->max_tx_queues = hv->max_queues; 242 243 hn_rndis_get_offload(hv, dev_info); 244 hn_vf_info_get(hv, dev_info); 245 } 246 247 static void 248 hn_dev_promiscuous_enable(struct rte_eth_dev *dev) 249 { 250 struct hn_data *hv = dev->data->dev_private; 251 252 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_PROMISCUOUS); 253 hn_vf_promiscuous_enable(dev); 254 } 255 256 static void 257 hn_dev_promiscuous_disable(struct rte_eth_dev *dev) 258 { 259 struct hn_data *hv = dev->data->dev_private; 260 uint32_t filter; 261 262 filter = NDIS_PACKET_TYPE_DIRECTED | NDIS_PACKET_TYPE_BROADCAST; 263 if (dev->data->all_multicast) 264 filter |= NDIS_PACKET_TYPE_ALL_MULTICAST; 265 hn_rndis_set_rxfilter(hv, filter); 266 hn_vf_promiscuous_disable(dev); 267 } 268 269 static void 270 hn_dev_allmulticast_enable(struct rte_eth_dev *dev) 271 { 272 struct hn_data *hv = dev->data->dev_private; 273 274 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_DIRECTED | 275 NDIS_PACKET_TYPE_ALL_MULTICAST | 276 NDIS_PACKET_TYPE_BROADCAST); 277 hn_vf_allmulticast_enable(dev); 278 } 279 280 static void 281 hn_dev_allmulticast_disable(struct rte_eth_dev *dev) 282 { 283 struct hn_data *hv = dev->data->dev_private; 284 285 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_DIRECTED | 286 NDIS_PACKET_TYPE_BROADCAST); 287 hn_vf_allmulticast_disable(dev); 288 } 289 290 static int 291 hn_dev_mc_addr_list(struct rte_eth_dev *dev, 292 struct ether_addr *mc_addr_set, 293 uint32_t nb_mc_addr) 294 { 295 /* No filtering on the synthetic path, but can do it on VF */ 296 return hn_vf_mc_addr_list(dev, mc_addr_set, nb_mc_addr); 297 } 298 299 /* Setup shared rx/tx queue data */ 300 static int hn_subchan_configure(struct hn_data *hv, 301 uint32_t subchan) 302 { 303 struct vmbus_channel *primary = hn_primary_chan(hv); 304 int err; 305 unsigned int retry = 0; 306 307 PMD_DRV_LOG(DEBUG, 308 "open %u subchannels", subchan); 309 310 /* Send create sub channels command */ 311 err = hn_nvs_alloc_subchans(hv, &subchan); 312 if (err) 313 return err; 314 315 while (subchan > 0) { 316 struct vmbus_channel *new_sc; 317 uint16_t chn_index; 318 319 err = rte_vmbus_subchan_open(primary, &new_sc); 320 if (err == -ENOENT && ++retry < 1000) { 321 /* This can happen if not ready yet */ 322 rte_delay_ms(10); 323 continue; 324 } 325 326 if (err) { 327 PMD_DRV_LOG(ERR, 328 "open subchannel failed: %d", err); 329 return err; 330 } 331 332 rte_vmbus_set_latency(hv->vmbus, new_sc, hv->latency); 333 334 retry = 0; 335 chn_index = rte_vmbus_sub_channel_index(new_sc); 336 if (chn_index == 0 || chn_index > hv->max_queues) { 337 PMD_DRV_LOG(ERR, 338 "Invalid subchannel offermsg channel %u", 339 chn_index); 340 return -EIO; 341 } 342 343 PMD_DRV_LOG(DEBUG, "new sub channel %u", chn_index); 344 hv->channels[chn_index] = new_sc; 345 --subchan; 346 } 347 348 return err; 349 } 350 351 static int hn_dev_configure(struct rte_eth_dev *dev) 352 { 353 const struct rte_eth_conf *dev_conf = &dev->data->dev_conf; 354 const struct rte_eth_rxmode *rxmode = &dev_conf->rxmode; 355 const struct rte_eth_txmode *txmode = &dev_conf->txmode; 356 357 const struct rte_eth_rss_conf *rss_conf = 358 &dev_conf->rx_adv_conf.rss_conf; 359 struct hn_data *hv = dev->data->dev_private; 360 uint64_t unsupported; 361 int err, subchan; 362 363 PMD_INIT_FUNC_TRACE(); 364 365 unsupported = txmode->offloads & ~HN_TX_OFFLOAD_CAPS; 366 if (unsupported) { 367 PMD_DRV_LOG(NOTICE, 368 "unsupported TX offload: %#" PRIx64, 369 unsupported); 370 return -EINVAL; 371 } 372 373 unsupported = rxmode->offloads & ~HN_RX_OFFLOAD_CAPS; 374 if (unsupported) { 375 PMD_DRV_LOG(NOTICE, 376 "unsupported RX offload: %#" PRIx64, 377 rxmode->offloads); 378 return -EINVAL; 379 } 380 381 err = hn_rndis_conf_offload(hv, txmode->offloads, 382 rxmode->offloads); 383 if (err) { 384 PMD_DRV_LOG(NOTICE, 385 "offload configure failed"); 386 return err; 387 } 388 389 hv->num_queues = RTE_MAX(dev->data->nb_rx_queues, 390 dev->data->nb_tx_queues); 391 subchan = hv->num_queues - 1; 392 if (subchan > 0) { 393 err = hn_subchan_configure(hv, subchan); 394 if (err) { 395 PMD_DRV_LOG(NOTICE, 396 "subchannel configuration failed"); 397 return err; 398 } 399 400 err = hn_rndis_conf_rss(hv, rss_conf); 401 if (err) { 402 PMD_DRV_LOG(NOTICE, 403 "rss configuration failed"); 404 return err; 405 } 406 } 407 408 return hn_vf_configure(dev, dev_conf); 409 } 410 411 static int hn_dev_stats_get(struct rte_eth_dev *dev, 412 struct rte_eth_stats *stats) 413 { 414 unsigned int i; 415 416 hn_vf_stats_get(dev, stats); 417 418 for (i = 0; i < dev->data->nb_tx_queues; i++) { 419 const struct hn_tx_queue *txq = dev->data->tx_queues[i]; 420 421 if (!txq) 422 continue; 423 424 stats->opackets += txq->stats.packets; 425 stats->obytes += txq->stats.bytes; 426 stats->oerrors += txq->stats.errors; 427 428 if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) { 429 stats->q_opackets[i] = txq->stats.packets; 430 stats->q_obytes[i] = txq->stats.bytes; 431 } 432 } 433 434 for (i = 0; i < dev->data->nb_rx_queues; i++) { 435 const struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 436 437 if (!rxq) 438 continue; 439 440 stats->ipackets += rxq->stats.packets; 441 stats->ibytes += rxq->stats.bytes; 442 stats->ierrors += rxq->stats.errors; 443 stats->imissed += rxq->stats.ring_full; 444 445 if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) { 446 stats->q_ipackets[i] = rxq->stats.packets; 447 stats->q_ibytes[i] = rxq->stats.bytes; 448 } 449 } 450 451 stats->rx_nombuf = dev->data->rx_mbuf_alloc_failed; 452 return 0; 453 } 454 455 static void 456 hn_dev_stats_reset(struct rte_eth_dev *dev) 457 { 458 unsigned int i; 459 460 PMD_INIT_FUNC_TRACE(); 461 462 for (i = 0; i < dev->data->nb_tx_queues; i++) { 463 struct hn_tx_queue *txq = dev->data->tx_queues[i]; 464 465 if (!txq) 466 continue; 467 memset(&txq->stats, 0, sizeof(struct hn_stats)); 468 } 469 470 for (i = 0; i < dev->data->nb_rx_queues; i++) { 471 struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 472 473 if (!rxq) 474 continue; 475 476 memset(&rxq->stats, 0, sizeof(struct hn_stats)); 477 } 478 } 479 480 static void 481 hn_dev_xstats_reset(struct rte_eth_dev *dev) 482 { 483 hn_dev_stats_reset(dev); 484 hn_vf_xstats_reset(dev); 485 } 486 487 static int 488 hn_dev_xstats_count(struct rte_eth_dev *dev) 489 { 490 int ret, count; 491 492 count = dev->data->nb_tx_queues * RTE_DIM(hn_stat_strings); 493 count += dev->data->nb_rx_queues * RTE_DIM(hn_stat_strings); 494 495 ret = hn_vf_xstats_get_names(dev, NULL, 0); 496 if (ret < 0) 497 return ret; 498 499 return count + ret; 500 } 501 502 static int 503 hn_dev_xstats_get_names(struct rte_eth_dev *dev, 504 struct rte_eth_xstat_name *xstats_names, 505 unsigned int limit) 506 { 507 unsigned int i, t, count = 0; 508 int ret; 509 510 if (!xstats_names) 511 return hn_dev_xstats_count(dev); 512 513 /* Note: limit checked in rte_eth_xstats_names() */ 514 for (i = 0; i < dev->data->nb_tx_queues; i++) { 515 const struct hn_tx_queue *txq = dev->data->tx_queues[i]; 516 517 if (!txq) 518 continue; 519 520 if (count >= limit) 521 break; 522 523 for (t = 0; t < RTE_DIM(hn_stat_strings); t++) 524 snprintf(xstats_names[count++].name, 525 RTE_ETH_XSTATS_NAME_SIZE, 526 "tx_q%u_%s", i, hn_stat_strings[t].name); 527 } 528 529 for (i = 0; i < dev->data->nb_rx_queues; i++) { 530 const struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 531 532 if (!rxq) 533 continue; 534 535 if (count >= limit) 536 break; 537 538 for (t = 0; t < RTE_DIM(hn_stat_strings); t++) 539 snprintf(xstats_names[count++].name, 540 RTE_ETH_XSTATS_NAME_SIZE, 541 "rx_q%u_%s", i, 542 hn_stat_strings[t].name); 543 } 544 545 ret = hn_vf_xstats_get_names(dev, xstats_names + count, 546 limit - count); 547 if (ret < 0) 548 return ret; 549 550 return count + ret; 551 } 552 553 static int 554 hn_dev_xstats_get(struct rte_eth_dev *dev, 555 struct rte_eth_xstat *xstats, 556 unsigned int n) 557 { 558 unsigned int i, t, count = 0; 559 const unsigned int nstats = hn_dev_xstats_count(dev); 560 const char *stats; 561 int ret; 562 563 PMD_INIT_FUNC_TRACE(); 564 565 if (n < nstats) 566 return nstats; 567 568 for (i = 0; i < dev->data->nb_tx_queues; i++) { 569 const struct hn_tx_queue *txq = dev->data->tx_queues[i]; 570 571 if (!txq) 572 continue; 573 574 stats = (const char *)&txq->stats; 575 for (t = 0; t < RTE_DIM(hn_stat_strings); t++, count++) { 576 xstats[count].id = count; 577 xstats[count].value = *(const uint64_t *) 578 (stats + hn_stat_strings[t].offset); 579 } 580 } 581 582 for (i = 0; i < dev->data->nb_rx_queues; i++) { 583 const struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 584 585 if (!rxq) 586 continue; 587 588 stats = (const char *)&rxq->stats; 589 for (t = 0; t < RTE_DIM(hn_stat_strings); t++, count++) { 590 xstats[count].id = count; 591 xstats[count].value = *(const uint64_t *) 592 (stats + hn_stat_strings[t].offset); 593 } 594 } 595 596 ret = hn_vf_xstats_get(dev, xstats, count, n); 597 if (ret < 0) 598 return ret; 599 600 return count + ret; 601 } 602 603 static int 604 hn_dev_start(struct rte_eth_dev *dev) 605 { 606 struct hn_data *hv = dev->data->dev_private; 607 int error; 608 609 PMD_INIT_FUNC_TRACE(); 610 611 error = hn_rndis_set_rxfilter(hv, 612 NDIS_PACKET_TYPE_BROADCAST | 613 NDIS_PACKET_TYPE_ALL_MULTICAST | 614 NDIS_PACKET_TYPE_DIRECTED); 615 if (error) 616 return error; 617 618 error = hn_vf_start(dev); 619 if (error) 620 hn_rndis_set_rxfilter(hv, 0); 621 622 return error; 623 } 624 625 static void 626 hn_dev_stop(struct rte_eth_dev *dev) 627 { 628 struct hn_data *hv = dev->data->dev_private; 629 630 PMD_INIT_FUNC_TRACE(); 631 632 hn_rndis_set_rxfilter(hv, 0); 633 hn_vf_stop(dev); 634 } 635 636 static void 637 hn_dev_close(struct rte_eth_dev *dev __rte_unused) 638 { 639 PMD_INIT_LOG(DEBUG, "close"); 640 641 hn_vf_close(dev); 642 } 643 644 static const struct eth_dev_ops hn_eth_dev_ops = { 645 .dev_configure = hn_dev_configure, 646 .dev_start = hn_dev_start, 647 .dev_stop = hn_dev_stop, 648 .dev_close = hn_dev_close, 649 .dev_infos_get = hn_dev_info_get, 650 .dev_supported_ptypes_get = hn_vf_supported_ptypes, 651 .promiscuous_enable = hn_dev_promiscuous_enable, 652 .promiscuous_disable = hn_dev_promiscuous_disable, 653 .allmulticast_enable = hn_dev_allmulticast_enable, 654 .allmulticast_disable = hn_dev_allmulticast_disable, 655 .set_mc_addr_list = hn_dev_mc_addr_list, 656 .tx_queue_setup = hn_dev_tx_queue_setup, 657 .tx_queue_release = hn_dev_tx_queue_release, 658 .tx_done_cleanup = hn_dev_tx_done_cleanup, 659 .rx_queue_setup = hn_dev_rx_queue_setup, 660 .rx_queue_release = hn_dev_rx_queue_release, 661 .link_update = hn_dev_link_update, 662 .stats_get = hn_dev_stats_get, 663 .stats_reset = hn_dev_stats_reset, 664 .xstats_get = hn_dev_xstats_get, 665 .xstats_get_names = hn_dev_xstats_get_names, 666 .xstats_reset = hn_dev_xstats_reset, 667 }; 668 669 /* 670 * Setup connection between PMD and kernel. 671 */ 672 static int 673 hn_attach(struct hn_data *hv, unsigned int mtu) 674 { 675 int error; 676 677 /* Attach NVS */ 678 error = hn_nvs_attach(hv, mtu); 679 if (error) 680 goto failed_nvs; 681 682 /* Attach RNDIS */ 683 error = hn_rndis_attach(hv); 684 if (error) 685 goto failed_rndis; 686 687 /* 688 * NOTE: 689 * Under certain conditions on certain versions of Hyper-V, 690 * the RNDIS rxfilter is _not_ zero on the hypervisor side 691 * after the successful RNDIS initialization. 692 */ 693 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_NONE); 694 return 0; 695 failed_rndis: 696 hn_nvs_detach(hv); 697 failed_nvs: 698 return error; 699 } 700 701 static void 702 hn_detach(struct hn_data *hv) 703 { 704 hn_nvs_detach(hv); 705 hn_rndis_detach(hv); 706 } 707 708 static int 709 eth_hn_dev_init(struct rte_eth_dev *eth_dev) 710 { 711 struct hn_data *hv = eth_dev->data->dev_private; 712 struct rte_device *device = eth_dev->device; 713 struct rte_vmbus_device *vmbus; 714 unsigned int rxr_cnt; 715 int err, max_chan; 716 717 PMD_INIT_FUNC_TRACE(); 718 719 vmbus = container_of(device, struct rte_vmbus_device, device); 720 eth_dev->dev_ops = &hn_eth_dev_ops; 721 eth_dev->tx_pkt_burst = &hn_xmit_pkts; 722 eth_dev->rx_pkt_burst = &hn_recv_pkts; 723 724 /* 725 * for secondary processes, we don't initialize any further as primary 726 * has already done this work. 727 */ 728 if (rte_eal_process_type() != RTE_PROC_PRIMARY) 729 return 0; 730 731 /* Since Hyper-V only supports one MAC address, just use local data */ 732 eth_dev->data->mac_addrs = &hv->mac_addr; 733 734 hv->vmbus = vmbus; 735 hv->rxbuf_res = &vmbus->resource[HV_RECV_BUF_MAP]; 736 hv->chim_res = &vmbus->resource[HV_SEND_BUF_MAP]; 737 hv->port_id = eth_dev->data->port_id; 738 hv->latency = HN_CHAN_LATENCY_NS; 739 hv->max_queues = 1; 740 rte_spinlock_init(&hv->vf_lock); 741 hv->vf_port = HN_INVALID_PORT; 742 743 err = hn_parse_args(eth_dev); 744 if (err) 745 return err; 746 747 strlcpy(hv->owner.name, eth_dev->device->name, 748 RTE_ETH_MAX_OWNER_NAME_LEN); 749 err = rte_eth_dev_owner_new(&hv->owner.id); 750 if (err) { 751 PMD_INIT_LOG(ERR, "Can not get owner id"); 752 return err; 753 } 754 755 /* Initialize primary channel input for control operations */ 756 err = rte_vmbus_chan_open(vmbus, &hv->channels[0]); 757 if (err) 758 return err; 759 760 rte_vmbus_set_latency(hv->vmbus, hv->channels[0], hv->latency); 761 762 hv->primary = hn_rx_queue_alloc(hv, 0, 763 eth_dev->device->numa_node); 764 765 if (!hv->primary) 766 return -ENOMEM; 767 768 err = hn_attach(hv, ETHER_MTU); 769 if (err) 770 goto failed; 771 772 err = hn_tx_pool_init(eth_dev); 773 if (err) 774 goto failed; 775 776 err = hn_rndis_get_eaddr(hv, hv->mac_addr.addr_bytes); 777 if (err) 778 goto failed; 779 780 /* Multi queue requires later versions of windows server */ 781 if (hv->nvs_ver < NVS_VERSION_5) 782 return 0; 783 784 max_chan = rte_vmbus_max_channels(vmbus); 785 PMD_INIT_LOG(DEBUG, "VMBus max channels %d", max_chan); 786 if (max_chan <= 0) 787 goto failed; 788 789 if (hn_rndis_query_rsscaps(hv, &rxr_cnt) != 0) 790 rxr_cnt = 1; 791 792 hv->max_queues = RTE_MIN(rxr_cnt, (unsigned int)max_chan); 793 794 /* If VF was reported but not added, do it now */ 795 if (hv->vf_present && !hn_vf_attached(hv)) { 796 PMD_INIT_LOG(DEBUG, "Adding VF device"); 797 798 err = hn_vf_add(eth_dev, hv); 799 if (err) 800 hv->vf_present = 0; 801 } 802 803 return 0; 804 805 failed: 806 PMD_INIT_LOG(NOTICE, "device init failed"); 807 808 hn_tx_pool_uninit(eth_dev); 809 hn_detach(hv); 810 return err; 811 } 812 813 static int 814 eth_hn_dev_uninit(struct rte_eth_dev *eth_dev) 815 { 816 struct hn_data *hv = eth_dev->data->dev_private; 817 818 PMD_INIT_FUNC_TRACE(); 819 820 if (rte_eal_process_type() != RTE_PROC_PRIMARY) 821 return 0; 822 823 hn_dev_stop(eth_dev); 824 hn_dev_close(eth_dev); 825 826 eth_dev->dev_ops = NULL; 827 eth_dev->tx_pkt_burst = NULL; 828 eth_dev->rx_pkt_burst = NULL; 829 830 hn_detach(hv); 831 hn_tx_pool_uninit(eth_dev); 832 rte_vmbus_chan_close(hv->primary->chan); 833 rte_free(hv->primary); 834 rte_eth_dev_owner_delete(hv->owner.id); 835 836 return 0; 837 } 838 839 static int eth_hn_probe(struct rte_vmbus_driver *drv __rte_unused, 840 struct rte_vmbus_device *dev) 841 { 842 struct rte_eth_dev *eth_dev; 843 int ret; 844 845 PMD_INIT_FUNC_TRACE(); 846 847 eth_dev = eth_dev_vmbus_allocate(dev, sizeof(struct hn_data)); 848 if (!eth_dev) 849 return -ENOMEM; 850 851 ret = eth_hn_dev_init(eth_dev); 852 if (ret) 853 eth_dev_vmbus_release(eth_dev); 854 else 855 rte_eth_dev_probing_finish(eth_dev); 856 857 return ret; 858 } 859 860 static int eth_hn_remove(struct rte_vmbus_device *dev) 861 { 862 struct rte_eth_dev *eth_dev; 863 int ret; 864 865 PMD_INIT_FUNC_TRACE(); 866 867 eth_dev = rte_eth_dev_allocated(dev->device.name); 868 if (!eth_dev) 869 return -ENODEV; 870 871 ret = eth_hn_dev_uninit(eth_dev); 872 if (ret) 873 return ret; 874 875 eth_dev_vmbus_release(eth_dev); 876 return 0; 877 } 878 879 /* Network device GUID */ 880 static const rte_uuid_t hn_net_ids[] = { 881 /* f8615163-df3e-46c5-913f-f2d2f965ed0e */ 882 RTE_UUID_INIT(0xf8615163, 0xdf3e, 0x46c5, 0x913f, 0xf2d2f965ed0eULL), 883 { 0 } 884 }; 885 886 static struct rte_vmbus_driver rte_netvsc_pmd = { 887 .id_table = hn_net_ids, 888 .probe = eth_hn_probe, 889 .remove = eth_hn_remove, 890 }; 891 892 RTE_PMD_REGISTER_VMBUS(net_netvsc, rte_netvsc_pmd); 893 RTE_PMD_REGISTER_KMOD_DEP(net_netvsc, "* uio_hv_generic"); 894 895 RTE_INIT(hn_init_log) 896 { 897 hn_logtype_init = rte_log_register("pmd.net.netvsc.init"); 898 if (hn_logtype_init >= 0) 899 rte_log_set_level(hn_logtype_init, RTE_LOG_NOTICE); 900 hn_logtype_driver = rte_log_register("pmd.net.netvsc.driver"); 901 if (hn_logtype_driver >= 0) 902 rte_log_set_level(hn_logtype_driver, RTE_LOG_NOTICE); 903 } 904